Home / 109,431.95-163,681.36-67,208.27

Finding the Fourth Proportional to 109,431.95, 163,681.36 and 67,208.27

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Solution

The fourth proportional to 109,431.95, 163,681.36 and 67,208.27 is: 100,525.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,431.95 : 163,681.36 = 67,208.27 : x
  2. Step 2: Convert to fraction form
    109,431.95/163,681.36 = 67,208.27/x
  3. Step 3: Cross multiply
    109,431.95x = 163,681.36 × 67,208.27
  4. Step 4: Simplify right side
    109,431.95x = 11,000,740,050.42
  5. Step 5: Solve for x
    x = 11,000,740,050.42/109,431.95
  6. Step 6: Final answer
    x = 100,525.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.